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2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Data Visualization module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
9** Commercial License Usage
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11** accordance with the commercial license agreement provided with the
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19** General Public License version 3 or (at your option) any later version
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21** the Free Software Foundation and appearing in the file LICENSE.GPL3
22** included in the packaging of this file. Please review the following
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29
30//
31// W A R N I N G
32// -------------
33//
34// This file is not part of the QtDataVisualization API. It exists purely as an
35// implementation detail. This header file may change from version to
36// version without notice, or even be removed.
37//
38// We mean it.
39
40#ifndef UTILS_P_H
41#define UTILS_P_H
42
43#include "datavisualizationglobal_p.h"
44
45QT_FORWARD_DECLARE_CLASS(QLinearGradient)
46
47QT_BEGIN_NAMESPACE_DATAVISUALIZATION
48
49class Utils
50{
51public:
52 enum ParamType {
53 ParamTypeUnknown = 0,
54 ParamTypeInt,
55 ParamTypeUInt,
56 ParamTypeReal
57 };
58
59 static GLuint getNearestPowerOfTwo(GLuint value);
60 static QVector4D vectorFromColor(const QColor &color);
61 static QColor colorFromVector(const QVector3D &colorVector);
62 static QColor colorFromVector(const QVector4D &colorVector);
63 static QImage printTextToImage(const QFont &font,
64 const QString &text,
65 const QColor &bgrColor,
66 const QColor &txtColor,
67 bool labelBackground,
68 bool borders = false,
69 int maxLabelWidth = 0);
70 static QVector4D getSelection(QPoint mousepos, int height);
71 static QImage getGradientImage(QLinearGradient &gradient);
72
73 static ParamType preParseFormat(const QString &format, QString &preStr, QString &postStr,
74 int &precision, char &formatSpec);
75 static QString formatLabelSprintf(const QByteArray &format, ParamType paramType, qreal value);
76 static QString formatLabelLocalized(ParamType paramType, qreal value,
77 const QLocale &locale, const QString &preStr, const QString &postStr,
78 int precision, char formatSpec, const QByteArray &format);
79 static QString defaultLabelFormat();
80
81 static float wrapValue(float value, float min, float max);
82 static QQuaternion calculateRotation(const QVector3D &xyzRotations);
83 static bool isOpenGLES();
84 static void resolveStatics();
85
86private:
87 static ParamType mapFormatCharToParamType(char formatSpec);
88};
89
90QT_END_NAMESPACE_DATAVISUALIZATION
91
92#endif
93

source code of qtdatavis3d/src/datavisualization/utils/utils_p.h